Home / 2,049.28-2,829.14-1,378.06

Finding the Fourth Proportional to 2,049.28, 2,829.14 and 1,378.06

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Solution

The fourth proportional to 2,049.28, 2,829.14 and 1,378.06 is: 1,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,049.28 : 2,829.14 = 1,378.06 : x
  2. Step 2: Convert to fraction form
    2,049.28/2,829.14 = 1,378.06/x
  3. Step 3: Cross multiply
    2,049.28x = 2,829.14 × 1,378.06
  4. Step 4: Simplify right side
    2,049.28x = 3,898,724.67
  5. Step 5: Solve for x
    x = 3,898,724.67/2,049.28
  6. Step 6: Final answer
    x = 1,902.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.